Investigate

Scientists Find First Evidence That Butterflies Crossed an Ocean

This Eagle Is Very, Very Lost

Red Knots in Steepest Decline in Years, Threatening the Species’ Survival

Can You Spot One of These Migrating Birds?

Canada’s Sparrows Are Singing a New Song. You’ll Hear It Soon.

They Wanted You to Bet on Sharks. The Odds Were Not in Their Favor.

Migration Numbers Plunge for the Red Knot, a Threatened Shore Bird

Coronavirus Lets Salamanders Own the Road

What’s Wrong With Butterflies Raised in Captivity?

Which Mammals on Land Migrate the Longest?

Weather Radars Reveal an 80 Percent Chance of ... Dragonflies?

These High-Flying Geese Are ‘the Astronauts of the Bird World’

Some Migratory Birds Sleep Better Than Others

These Animal Migrations Are Huge — and Invisible

How Dangerous Is It to Be a Bird in Your City? Buildings Kill Hundreds of Millions a Year

Drunk Birds? How a Small Minnesota City Stumbled Into the Spotlight

Some Birds Are Better Off With Weak Immune Systems

Drones Spy Caribou on a Treacherous, Icy Crossing

Animals Are Losing Their Vagility, or Ability to Roam Freely

Yearly 9/11 Tribute Shows Light Pollution’s Effects on Birds